Q. I am painting a motorcycle tank with a dark metallic blue and am curiuos
if I can mist over decals to create a "ghost" effect. I was thinking of putting
two or three coats on then applying silver flame decals and lightly misting
a final coat before applying my clear coat. Have you heard of this or know how
it might look?

A. I have not heard or seen any of the artistic effects stated in you question
and that has very little meaning to the end result. Using a little imagination,
I perceive misting the paint over the decal would add a level of dimension and
depth to the decal.

I hope you have a couple extra decals where you can create some trial and error
testing.